MEMs

Porous and Stiff Material for Aircraft Lightweighting

Researchers have developed and manufactured a family of architectures that maximizes the stiffness of porous, lightweight materials. 3D printing and other additive production techniques make it possible to manufacture materials with internal structures of previously unimaginable complexity. Achieving this requires that the internal structures be intelligently organized for maximum efficiency.

The stiffness in the material’s interior is achieved through plate-lattices rather than trusses. These structures that are up to three times stiffer than truss-lattices of the same weight and volume.

Posted in: INSIDER, News, Defense, Composites, Materials
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Foldable Drone Flies Through Narrow Holes

A new drone was developed that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters, such as inspecting a damaged building after an earthquake or during a fire.

The autonomous, morphing drone has onboard perception and control systems, enabling it to maneuver in tight spaces and guarantee a stable flight at all times.

Posted in: INSIDER, News, Aerospace, Defense
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NASA Experiments Fly on Virgin Galactic Spacecraft

Virgin Galactic’s SpaceShipTwo successfully flew to suborbital space last month with four NASA-supported technology payloads onboard. NASA’s Flight Opportunities Program purchased flight services, the accommodation, and ride from Virgin Galactic for the payloads. During the flight, the payloads collected valuable data needed to mature the technologies for use on future missions.

Source

Posted in: INSIDER, News, Aeronautics, Aerospace, Defense
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Unique Method for Orifice Production

To produce accurate, repeatable orifices, all the variables that might influence the Cd Value (Coefficient of Discharge) must be controlled during production. This includes the orifice hole length, edges, surface finishes, roundness and the elimination of all tool marks, burrs, ragged edges and irregularities. If any one of these areas is not perfectly managed, the orifice flow rates will vary from piece to piece thereby making it impossible to predict flow with any accuracy.

Posted in: White Papers, White Papers, Mechanical Components, Mechanics
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Improving Performance of Hybrid-Electric Aircraft

Although hybrid-electric cars are becoming commonplace, similar technology applied to airplanes comes with significantly different challenges. University of Illinois aerospace engineers are addressing some of them toward the development of a more sustainable alternative to fossil fuels to power airplanes.

Posted in: INSIDER, News, Aviation, Defense
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Virtual Runway, Real Pilot Practice

When a plane overshoots the final approach, often the pilot’s natural — and dangerous — instinct is to pitch the aircraft up to slow down and land. It’s one of the leading causes of accidents, especially with small airplanes. But what if that same mistake happened at 5,000 feet instead?

Posted in: INSIDER, News, Aviation, Defense
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AUDS Goes Undetected With New Ammunition

For the third iteration, the AUDS (anti-unmanned aerial vehicle defense system) recently returned to Fort Sill for the Maneuver Fires Integrated Experiment (MFIX). During the last few MFIX events, the AUDS, which works to detect, track, identify and defeat unmanned aerial vehicles (UAV), has evolved from its design as a simple focused-energy weapon to a non-lethal/lethal system by pairing its focused energy to a 30 mm chain gun. At MFIX 2018, the AUDS evolved again, this time developing a passive detection program.

Posted in: INSIDER, News, Aerospace, Defense, Automation, Robotics
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Wind Tunnel, Lasers Provide Hypersonic Proving Ground

It’s about speed, and Sandia National Laboratories, with a hypersonic wind tunnel and advanced laser diagnostic technology, is in a position to help U.S. defense agencies understand the physics associated with aircraft flying five times the speed of sound. With potential adversaries reporting successes in their own programs to develop aircraft that can be flown at Mach 5 or greater speeds, U.S. development of autonomous hypersonic systems is a top defense priority. That has made aerospace engineer Steven Beresh of Sandia’s aerosciences department and his colleagues at the hypersonic wind tunnel popular lately.

Posted in: INSIDER, News, Data Acquisition, Defense, Propulsion, Test & Measurement
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Self-Generated Power Will Reduce Soldier Load

The bionic power knee harvester, also known as the PowerWalk, is an energy-harvesting device that is attached to both the upper and lower areas of both legs and generates power from movement. The device extracts the energy when the knee is flexed and negative work is being performed. The system adjusts to a person’s gait, so soldiers don’t feel like they are wearing a device and can even forget that they have it on.

Posted in: INSIDER, News, Defense, Power, Robotics
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Smart Skin Simplifies Spotting Strain in Aircraft

Thanks to one peculiar characteristic of carbon nanotubes, engineers will be able to measure the accumulated strain in an airplane over the entire surface or down to microscopic levels. They’ll do so by shining a light onto structures coated with a two-layer nanotube film and protective polymer.

Posted in: INSIDER, News, Aeronautics, Aerospace, Aviation, Defense
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